. 2014 Oct 14;53(44):6893–6900. doi: 10.1021/bi501120p

Table 1. PAPS Binding to SULT1A1.

binding site	k_on (μM^–1 s^–1)^a	k_off (s^–1)^a	k_off/k_on (μM)^a	K_d (μM)^a
high-affinity	2.0 (0.1)	0.70 (0.05)	0.37 (0.04)	0.37 (0.05)
low-affinity	0.96 (0.01)	29 (1)	30 (3)	30 (4)

Values in parentheses indicate one standard deviation.